Method of removing battery-terminals.



l E. w. WEINMANN.

y METHOD OF-REMOVING BATTERY TERMINALS.

-APPLlcATloN man oms'. Isls.

1,265,980. Patented May14,1918.

EnNEsr vv. WEINMANN,

or cHIcAGo, ILLINoIs.

METHOD F REMOVIN G BAT'IERY-TERMIN'ALS.

To all whom t may concern:

Be it known that I, ERNEST W. WEIN- MANN, a, citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new.

and useful Improvements in Methods of Relmoving Battery-Terminals, of which the following is a specification. A

The common -method of making storage batteries is to assemble all of the parts with #the groups in place', and these groups have ,upwardly extending posts which project through the covers. These covers are sealed imposition, and then the terminals are vapplied to the posts and are. burned on. so as to make a substantially integral connection.

When it becomes necessary to take the battery apart for inspection or repairs, the usual practice is to burn of the terminals or'else bore ahole through the same of substantially thesame diameter as the post. In either event, when the terminal is removed, the original post is entirely cutaway, leaving nothing projecting to any appreciable -distance above the top of the battery cover. It is then necessary to re- I'- move the cover, which is commonly done by taking out the sealing compound with a hot putty knife or other suitable instrument, but in doing this, the case cover is apt to be broken. After the cover is removed, the stubs of the original posts may be reached for withdraw'ing the groups. In reassembling the parts, it is diliicult to burn on a new terminal to these stubs, as they project but slightly from the top of the box, and

dirt or other impurities are apt to interfere with the burning, so as to make a poor connectionf Such dirt or impurities is apt to cause high resistance, which frequently generfges suiieient heat to burn 'off the termi- 11a.

In accrdance with the present invention I provide a method of removing battery terminals, which'not only removes the termif Iials in an easy and convenient manner, but leaves posts similar to the posts with which thegrou-ps were originally supplied.

l'The objects of the present invention are to, provl`tle a simple and convenient method forfremovipg battery terminals, which may b e readily practised by even unskilled persons; to provide a method for removing vbaftteryjterminals, which willleave posts for making'a new connection; and to provide Speeication of Letters Patent.'

fer to Patented May 14, 191s.

Application led December 8, 1916. Serial No. 135,870. y

as will be'j more y line 2 2 of Fig. l;I showing a cross section of the terminal, which has beenburned onto the original ture;

cutting an annular groove in the terminal post; and

Fig. 4 indicates the post which is left after the terminal is removed, the terminal being indicated in dotted lines.

In the carrying out 'of this process I preutilize a boring tool such as shown in my eopending application, which will bore an annular groove or channel. When it is desired to remove a terminal, the operator centers the tool on the terminal 5, as shown in Fig. 1, and then actuates the samek to bore an annular groove 6. The outer diameter of this groove is preferably about the same as the outer diameter of the post or connection member 7, while its inner diameter is sulicient to leave a substantial core 8. When the end of the tool passes through the terminal, as indicated in Fig. 4, the terminal may be removed and the core 8 then provides a projection or post similar to the original post of the battery.

It will be' seenthat my improved method provides an easy and advantageous Way of removing the terminal, which may be practised by anyone even having llittle or no for removing the-terminal while leaving .a

-skill in such matters'. Furthermore, the

post to form a unitary'struc- Fig. 3 illustrates .the method of boring or leaving of the post or core 8 extending f above the cover provides somethin for the operator to get hold of, so that t e group may be pulled out with but slight heating of the sealing compound, so that the cover will come off with the group. Furthermore, the projecting post furnishes a connection for charging the battery before it is again rebuilt, as this is often done. Temporary terminals may be connected to these posts for supplying current-to the groups.

,This solid .post is also of advantage inV reassembling thebattery, as it gives a p ost similar to the imc originally provided when the battery was first assembled. This saves time in burning on a new terminal, and also prevents the liability of making a poor connection, as is apt to be done with the lold* method. v

It will thus be seen that` my improved method not only contemplates the removal of the terminals, but also provides means for readily removing the groups from the battery, and also provides for the convenient reassembling of the battery and connecting new terminals therewith.

Having thus described m invention, which, however I do not wis to limit to the'exactsteps herein shown and described, except as specified in the following claims, what I claim and desire to secure by Letters Patent is:

1. The method of removing a battery ter minal which consists in forming an annular groove throu h the terminal, concentric with the original attery post or connection.

2. The method of removing a battery terminal which consists in forming an annular groove through the terminal, of substantially the same outer diameter as the ad 'acent portion of the post or connection, and

aving an internal diameter suiiiciently large to leave a substantial said post or connection.

3. lhe method of disassemblingland asseln-A projection from y bling batteries which in boringennular holes through the terminals for removing them whiie leaving projecting posts, then removing the `groups. y raising the same with the covers thereon fromthe jars,

'and then reassembling 'the battery parts by inserting the groups with the covers theresaid posts or projections.

4. The method of removing connectors from the terminal posts of storage battery electrodes, which consists cutting an anon, and iinally burning other` terminals onto nular groove through the metal uniting the connector and post, with the groove entering through the top of the connector and extended to a depth to be below the fused groove entering through the top of the con' nector end'extended to a depth to be below the .fused union between theconneetor and post, and on replacing the connector after its removal from the post lling'the groove with lead and causing its integral union` with the walls of the groove by burning.

' nasser w. WEINMNN. 

